//boost::io::too_many_args_bit selects errors due to passing too many arguments. //boost::io::too_few_args_bit selects errors due to asking for the srting result before all arguments are passed boost::format my_fmt(conststd::string&f_string) { usingnamespaceboost::io; format fmter...
using namespace std; using namespace boost; int main() { format fmt( "%2% says \"%1%\"." ); fmt % "Yousen"; fmt % "Hello"; string str = fmt.str(); cout << "string from fmt: " << str << endl; cout << "fmt: " << fmt << endl; } 输出: string from fmt: Hello ...
cout << fmt << endl; }catch(std::exception& err) { cout << err.what() << endl; } AI代码助手复制代码 封装 boost.format是以一个对象,而不是函数来实现的,导致其使用和异常处理起来要麻烦不少,不过,利用c++11的可变参数模板的语法还是可以很容易把它封装成一个可变参数的函数的形式: stringstring_...
代码语言:txt 复制 #include <boost/format.hpp> #include <iostream> int main() { double number = 3.1415926; std::string formattedNumber = boost::str(boost::format("%.2f") % number); std::cout << formattedNumber << std::endl; return 0; } 在这个示例中,我们定义了一个double类型的...
std::cout << strTime.c_str() << std::endl; 2. 输出YYYYMMDD-HH:MM:SS [cpp]view plaincopy #include <boost/date_time/posix_time/posix_time.hpp> #define BOOST_DATE_TIME_SOURCE std::string strTime = boost::posix_time::to_iso_string(\ ...
()); } }; using BoostTraceType = std::remove_reference_t<decltype(boost::stacktrace::stacktrace())>; template <> struct fmt::formatter<BoostTraceType> : formatter<string_view> { //possibly BoostTraceType = boost::stacktrace::basic_stacktrace ? template <typename FORMAT_CONTEXT> auto format...
'){}// 格式化参数必须包含下面的字符// %1% i// %2% s// %3% cstd::stringto_string(conststd::string&format_specifier)const{boost::formatf(format_specifier);// 去掉too_many_args_bit位,保留其他位unsignedcharflags=boost::io::all_error_bits;flags^=boost::io::too_many_args_bit;f....
const std::string& Cserver::db_name(const std::string& v) const { return m_database.name(v); } void Cserver::read_db_deny_from_hosts() { m_read_db_deny_from_hosts_time = time(); if (!m_use_sql) return; try { Csql_result result = Csql_query(m_database, "select begin,...
reimplement some usage of osv::sprintf() by using std::to_string() instead eliminate osv::fprintf*() functions and replace most of their usages with new osv::sprintf() eliminate usage of std::o...
NotificationsYou must be signed in to change notification settings Fork91 Star1.1k New issue Open When compiling on Lubuntu in my virtual machine I get the following error: medusa/src/core/instruction.cpp:40:22: error: ‘format’ is not a member of ‘boost’ std::string Res = (boost::f...